Line-protector for telegraph and telephone systems.



T. GONZALEZ Y SEBASGO. LINE PROTECTOR FOR TELEGRAPH AND TELEPHONE SYSTEMS. v

APPLIOATIQN PILED MAY 25. 1914.

Patented Sept. 22, 1914.

WITNESSES WILL A TTOH/VEYS high voltage charges accompanying thunder,

TOMAS GONZALEZ Y SEBASCO, OF HABANA, CUBA.

LINE-PROTECTOR FOR TELEGRAJPH AND TELEPHONE SYSTEMS.

Specification of Letters Patent.

Patented Sept. 22, 1914.

Application filed May 25, 1914. Serial No. 840,778.

. To all whom it may concern:

Be it known that I, TOMAS GONZALEZ r SnnAsco, a citizen of the Republic of Cuba,"

and a resident of Habana, Cuba, have invented a new and Improved Line-Protector for Telegraph and Telephone Systems, ofwhich the following is a full, clear, and eX-f act description.

This -invention relates to protector devices:

of the spark arrester type for telegraph, telephone or. other electric systems, whereby the electric instruments are-protected against storms or other electric disturbances.

The general object of the invention is tov improve and simplify the construction and operation of lightning arresters of that type including fu'se wires or equivalent means so as to be reliable and efficient in use, comparative'ly simple and inexpensive to manufacture, and so designed that new fuses can be applied, even during the presence of a storm, without danger to th operator.

taken off during the presence of a storm without danger to the o orator, for the purpose -of putting in new uses, it being necessary, however, to suitably preserve the continuity of the line circuit bythe use of a plug or e uivalent means, so that communication wl not be interrupted through the line circuit while new fuses are being aption separated from the base but about to be applied thereto; Fig. 2 is a bottom plan view of the base for showing the cross-connecting wires, whereby the main line wires can be connected together when the fuses blow or when the removable section is taken off for replacing the fuses; Fig. 3 is a perspective view of one of the circuit closing contacts 'to-whichya fuse is connected; Fig. 4 is a detail sectional view showing the mannerof electrically'connecting the parts of the base and removable sections of the de vice together; and Fig. 5 is adiagrammatic view of the circuit connections.

section is also provided with binding posts 6 and 6 to which the local wires 7 and 7 are connected. The binding posts 4 and 4 are connected respectively with the binding posts 6 and 6 by current conducting parts arranged on the sections A and B. Metal strips 8 and 8 are fastened to the top surface of the plate 1, and the extremities are bent downwardly into the recess 2 to form spring contacts 9 and 9*, and the binding posts 5 and 6 are connected with metal pieces 10 and 10 which are bent downwardly into the recess 2 to form spring con tacts corresponding to -9 and 9*. On the ends of the section B are contact members 11, 11 and 12, 12*, which have portions disposed in the end surfaces of the plate 3 in such a manner that they are engaged with the contacts 9, 9 and 10, 10, respectively. The spring contacts on the base section A normally project from the end walls of the recess 2, as clearly shown in Fig. 4, so that when the section B is inserted in such recess the spring contacts will make good electrical connections with the contacts on the section B, which section has an insulated handle 5, whereby it can be easily applied to or removed from the base section 1A. Pivotally mounted on the upper portions of the corn tacts 11, 11, are contact levers 13 and 13, which have binding posts 1% and 1& to which are fastened respectively fuse wires 15 and 15*, which latter are in turn respectively connected with binding posts 16 and 16 of the contacts 12 and 12 The levers 13 and 13 are each provided with a spring 17 which is normally under tension when the fuse isintact, but whena fuse blows, the lever normally restrained thereby will be actuated by its associated spring so as to engage a fixed contact on the section A. The fixed contacts for the lever contacts are designated 18 and 18 and are mounted on the section A adjacent the edge of the recess 2. These fixed contacts 18 and 18 are normally insulated from-each other by being spaced apart, but they can be connected together by a spring plug 19 being inserted in sockets 20 arranged in the plate A at a point between the fixed contacts, whereby the plug will en gage the edges of the latter.

-Associated with the contacts 18,18 is.

a grounding plate 21 which has a serrated edge 22 disposed adjacent the serrated edges 23 of the contacts 18 and 18 whereby sparkgaps are provided across which electrical discharges from ither line liow to the ground. This plafjl has a binding post 24 to which a groifhd wide 25 is connected, as shown in Fig. .41. 1 Between the lateral edges of the plate 21 and the contact strips 8 and 8 are sockets 26 and 26 whereby either of the mainline wires may be grounded by the insertion of the plug 19 in the desired socket. Normally the plug when not in use is inserted in a socket 27 provided inthe plate v21, so that the socket is handy for use at all times. As shown in Fig. 2, the under side of the plate 1 is provided with cross-connections or wires 28 and 29 which respectively connect the binding posts 4: and 43 with the fixed contacts 18, 18 whereby the line wires o and 5 can be directly connected wheii'either or both fuses burn out, or when the plug 19 is inserted between the contacts 18 and 18*.

From the foregoing description taken in connection with the accompanying drawing, the advantages of the construction and method of operation will be readily understood by those skilled in the art to which the invention appertains, and while I have described the apparatus which I now consider to be the best embodiment thereof, I desire to have it understood that the apparatus shown is merely illustrative, and that such changes may be made when desired as are within the scope of the appended claims.

Having thus describedmy invention, 1

. claim as new and desire to secure by Letters Patent:

1. A protective apparatus of the class described, comprising a base section having contacts for connection with circuit wires,

a removable section having contacts engaging the first-mcntioned contacts, a movable contact connected with one of the contacts of the movable section, a fuse connected contact of the movable section, a fixed contact on the base section arranged to engage with the movable contact when the fuse burns out, and a grounded member on the base section and spaced from the said fixed contact to form a gap across-which an electric discharge takes place.

A. protective apparatus of the clziss described, comprising a base section having a recess, a plurality of contacts fastened thereto and having portions extending into the recess, means for connecting the contacts at one end with the main circuit wires and contacts at the opposite endwith local the said recess and having contacts engaging the contacts on the base section, springpressed movable contacts mounted on the removable section and each. connected with a contact thereof, fuse wires cxtending'from the movable contacts to the other contacts of the removable section, fixed contacts on the base section normally insulated from each other and associated with the respective movable contacts to be engaged thereby, a grounded member on the base section disposed adjacent the fixed contacts to form therewith gaps across which electric discharges take place, and cross-connections be tween the fixed contacts and the said contacts of the base section to which the main circuit wires are connected.

8. A protective apparatus of the class debinding posts for connection with main line wires and binding posts for local line wires, fixed contacts, cross-connections between the main line wires, binding posts and the fixed contacts, a grounded member on the'base section and forming with the fixed contacts gaps across which electric discharges take place, means adapted to be applied to the fixed contacts for electrically connecting them, in combination with a removable section having means for electrically connecting corresponding binding posts for the main and local wires together, and each means including a fuse, and a movable contactinormally restrained by the fuse and adapted to engage a corresponding fixed contact on the base section when the fuse burns.

1. A protective apparatus of the class described comprising a base section including means for connection with main and local circuit wires, grounding means for the main circuit wires and including spark gaps, a removable section normally connecting the main circuit wires with the corresponding local circuit wires .and including a fuse rewith the movable contact and with the other circuit wires, a removable section fitting in scribed comprising a base section having.

' v straining means for connecting the main ln testimony Whereoil have signed my line Wires together when a high potential name to this specification in the presence of flow through either or both line wires burns two subscribing witnesses.

the fuses, and means for connecting the TOMAS GONZALEZ "I SEBASGO. main line wires together when the removable Witnesses:

section is removed for the application of GEORGE A. Bnnmssis, newfuses. RAOUL F. WASHINGTON. 

